Selective solid-phase extraction of organophosphorus pesticides and their oxon-derivatives from water samples using molecularly imprinted polymer followed by high-performance liquid chromatography with UV detection

Paulina Godoy Arias, Héctor Martínez-Pérez-Cejuela, Audrey Combès, Valérie Pichon, Eduardo Pereira, José Manuel Herrero-Martínez, MANUEL ANDRES BRAVO MERCADO

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12 Scopus citations

Abstract

A molecularly imprinted polymer was synthesized and characterized to be used as solid-phase extraction sorbent for simultaneous chlorpyrifos and diazinon and their oxon derivatives. Several imprinted polymers were prepared and evaluated in a retention study of these analytes compared with a non-printed polymer. Several parameters affecting the extraction of imprinted polymer such as washing solvent, composition and volume of the eluting solvent and sample volume, were also investigated. Under the optimum conditions, the developed method provided satisfactory limits of detection ranging between 0.07 µg L−1 to 0.12 µg L−1 and the material showed an excellent reusability (> 50 reuses). The method was applied to the extraction and preconcentration of these analytes in water samples. The average recoveries ranged from 79 ± 6 to 104 ± 3 %.

Original languageEnglish
Article number461346
JournalJournal of Chromatography A
Volume1626
DOIs
StatePublished - 30 Aug 2020
Externally publishedYes

Keywords

  • Environmental water samples
  • Molecularly imprinted polymer
  • Organophosphorus pesticides
  • Pesticides-oxon
  • Pollutants
  • SPE

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